const webpack = require('webpack')
const LodashModuleReplacementPlugin = require('lodash-webpack-plugin');
'use strict'
const path = require('path')
const defaultSettings = require('./src/settings.js')

function resolve(dir) {
  return path.join(__dirname, dir)
}

const name = defaultSettings.title || '看看医疗-药店管理系统' // page title

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following method:
// port = 9527 npm run dev OR npm run dev --port = 9527
const port = process.env.port || process.env.npm_config_port || 1521 // dev port

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  /**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
  publicPath: process.env.NODE_ENV === 'development' ? '/' : '/shopadmin/',
  outputDir: 'dist', //dist
  assetsDir: 'static',
  lintOnSave: false, // process.env.NODE_ENV === 'development',
  productionSourceMap: false,
  devServer: {
    port: port,
    open: false,
    overlay: {
      warnings: false,
      errors: true
    },
    proxy: {
      // change xxx-api/login => mock/login
      // detail: https://cli.vuejs.org/config/#devserver-proxy
      [process.env.VUE_APP_BASE_API]: {
        target: `http://127.0.0.1:${port}/mock`,
        changeOrigin: true,
        pathRewrite: {
          ['^' + process.env.VUE_APP_BASE_API]: ''
        }

        // target: 'http://localhost:8754', // 'http://localhost:45074',
        // changeOrigin: true,
        // pathRewrite: {
        //   ['^' + process.env.VUE_APP_BASE_API]: ''
        // }
      },
      'ashx': {
        // target: `http://127.0.0.1:${port}/mock`,
        target: 'http://localhost:8754', // 'http://localhost:45074/',
        changeOrigin: true
      },
      '/baiduapi': {
        target: 'http://api.map.baidu.com',
        changeOrigin: true, //是否跨域
        pathRewrite: {
          '^/baiduapi': '' //规定请求地址以什么作为开头
        }
      }

    },
    after: require('./mock/mock-server.js')
  },
  configureWebpack: {
    // provide the app's title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct title.
    name: name,
    plugins: [
      new LodashModuleReplacementPlugin(),//优化lodash
      // new webpack.ProvidePlugin({
      //   $: 'jquery',
      //   jQuery: 'jquery',
      //   'window.jQuery': 'jquery'
      // })
    ],
    resolve: {
      alias: {
        '@': resolve('src'),
        //以下两个：不加上去指定的话。会打包同的样双份！
        'hi-ui': path.resolve(process.cwd(), 'node_modules', 'hi-ui'),
        'echarts': path.resolve(process.cwd(), 'node_modules', 'echarts'),
      }
    }
  },
  chainWebpack(config) {
    config.plugins.delete('preload') // TODO: need test
    config.plugins.delete('prefetch') // TODO: need test

    // set svg-sprite-loader
    config.module
      .rule('svg')
      .exclude.add(resolve('src/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()

    // set preserveWhitespace
    config.module
      .rule('vue')
      .use('vue-loader')
      .loader('vue-loader')
      .tap(options => {
        options.compilerOptions.preserveWhitespace = true
        return options
      })
      .end()

    config
      // https://webpack.js.org/configuration/devtool/#development
      .when(process.env.NODE_ENV === 'development',
        config => config.devtool('cheap-source-map')
      )

    config
      .when(process.env.NODE_ENV !== 'development',
        config => {
          config
            .plugin('ScriptExtHtmlWebpackPlugin')
            .after('html')
            .use('script-ext-html-webpack-plugin', [{
              // `runtime` must same as runtimeChunk name. default is `runtime`
              inline: /runtime\..*\.js$/
            }])
            .end();
          config
            .optimization.splitChunks({
              chunks: 'all',
              cacheGroups: {
                commonLibs: {
                  name: 'common-libs',
                  test: /[\\/]node_modules[\\/].*\.js$/,
                  priority: 10,
                  minChunks: 1,
                  minSize: 200000,
                  maxSize: 500000,
                  reuseExistingChunk: true
                }, 
                'element-ui': {
                  name: 'element-ui',
                  priority: 50,
                  chunks: 'initial',
                  test: /[\\/]node_modules[\\/]_?element-ui(.*)/,
                  reuseExistingChunk: true
                },
              }
            })
          config.optimization.runtimeChunk('single') 
        }
      )
  }
}
